Both Wild (1969, 1970) and Lisowski (1991) have treated C. ruwenzoriensis and C. welwitschii as synonymous, but there are differences between the types of these taxa: the number of central florets is much lower in ruwenzoriensis, and the rays are much shorter than the style (not much longer) and erect, not spreading. There are some associated differences in the degree of scabridity on leaves and inflorescence axes; the taxa can be separated on sight, and C. welwitschii is restricted in our area toT7. For the time being I prefer to keep these taxa separate.

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